Yokozuna Hakuho suffered a stunning upset, handing ozeki Kisenosato the sole lead on Sunday as the New Year Grand Sumo Tournament passed the halfway mark after eight days.

Hakuho, looking to extend his record career championship haul to 38, entered the day along with Kisenosato as one of just two unbeaten wrestlers in the 15-day tourney at Tokyo's Ryogoku Kokugikan, but No. 2 maegashira Arawashi (2-6) deflected his fellow Mongolian's lightning-quick charge and forced him out.

Hakuho's loss left Kisenosato alone with an 8-0 record. Despite racking up more wins last year than any other wrestler, Kisenosato remains in the hunt for his first career championship. Although he looked extremely solid through the first week, he nearly slipped up on Sunday.